Forgot Password

If you have forgotten your password you can enter your email here and get a temporary password sent to your email.

Identification and inhibition of the ICE/CED-3 protease necessary for mammalian apoptosis.

The protease responsible for the cleavage of poly(ADP-ribose) polymerase and necessary for apoptosis has been purified and characterized. This enzyme, named apopain, is composed of two subunits of relative molecular mass (M(r)) 17K and 12K that are derived from a common proenzyme identified as CPP32. This proenzyme is related to interleukin-1 beta-converting enzyme (ICE) and CED-3, the product of a gene required for programmed cell death in Caenorhabditis elegans. A potent peptide aldehyde inhibitor has been developed and shown to prevent apoptotic events in vitro, suggesting that apopain/CPP32 is important for the initiation of apoptotic cell death.

Pubmed ID: 7596430


  • Nicholson DW
  • Ali A
  • Thornberry NA
  • Vaillancourt JP
  • Ding CK
  • Gallant M
  • Gareau Y
  • Griffin PR
  • Labelle M
  • Lazebnik YA



Publication Data

July 6, 1995

Associated Grants


Mesh Terms

  • Amino Acid Sequence
  • Animals
  • Apoptosis
  • Caenorhabditis elegans
  • Caenorhabditis elegans Proteins
  • Caspase 1
  • Caspase 3
  • Caspases
  • Cysteine Endopeptidases
  • Cysteine Proteinase Inhibitors
  • Enzyme Precursors
  • Helminth Proteins
  • Humans
  • Kinetics
  • Mass Spectrometry
  • Molecular Sequence Data
  • Poly(ADP-ribose) Polymerases
  • Tumor Cells, Cultured